CVE-2018-19057: Cross-site Scripting

November 7, 2018 (updated December 12, 2018)

SimpleMDE suffers from XSS via an onerror attribute of a crafted IMG element, or via certain input with [ and ( characters, which is mishandled during construction of an A element.

References

github.com/sparksuite/simplemde-markdown-editor/issues/721
nvd.nist.gov/vuln/detail/CVE-2018-19057

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